SVENSK STANDARD SS-EN ISO 2578

SVENSK STANDARD SS-EN ISO 2578 Handläggande organ Fastställd Utgåva Sida SVENSK MATERIAL- & MEKANSTANDARD, SMS 1998-09-25 1 1 (1+19) INNEHÅLLET I SVENSK STANDARD ÄR UPPHOVSRÄTTSLIGT SKYDDAT. SIS HAR COPYRIGHT PÅ SVENSK STANDARD. EFTERTRYCK UTAN TILLSTÅND ÄR FÖRBJUDET. Plastics Determination of timetemperature limits after prolonged exposure to heat (ISO 2578:1993) Plast Bestämning av tid-temperaturgränser efter förlängd värmeexponering (ISO 2578:1993) The European Standard has the status of a Swedish Standard. This document contains the official English version of. Swedish Standards corresponding to documents referred to in this Standard are listed in Catalogue of Swedish Standards, issued by SIS. The Catalogue lists, with reference number and year of Swedish approval, International and European Standards approved as Swedish Standards as well as other Swedish Standards. Europastandarden gäller som svensk standard. Detta dokument innehåller den officiella engelska versionen av. Motsvarigheten och aktualiteten i svensk standard till de publikationer som omnämns i denna standard framgår av Katalog över svensk standard, som ges ut av SIS. I katalogen redovisas internationella och europeiska standarder som fastställts som svenska standarder och övriga gällande svenska standarder. ICS 83.080.01 Standarder kan beställas hos SIS som även lämnar allmänna upplysningar om svensk och utländsk standard. Postadress: SIS, Box 6455, 113 82 STOCKHOLM Telefon: 08-610 30 00. Telefax: 08-30 77 57 Upplysningar om sakinnehållet i standarden lämnas av SMS. Telefon: 08-459 56 00. Telefax: 08-667 85 42 E-post: info@sms-standard.se Prisgrupp Q Tryckt i oktober 1998

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN ISO 2578 August 1998 ICS 83.080.01 Descriptors: plastics, tests, thermal tests, thermal endurance tests, high temperature tests English version Plastics Determination of time-temperature limits after prolonged exposure to heat (ISO 2578:1993) Plastiques Détermination des limites tempstempératures après exposition à l'action prolongée de la chaleur (ISO 2578:1993) Kunststoffe Bestimmung der Temperatur- Zeit-Grenzen bei langanhaltender Wärmeeinwirkung (ISO 2578:1993) This European Standard was approved by CEN on 12 June 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified; to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 BRUSSELS 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref. No. E

Provläsningsexemplar / Preview Contents Page Foreword... 3 Introduction... 4 1 Scope... 5 2 Normative references... 5 3 Definitions... 6 4 Principle... 6 5 Choice of test... 7 6 Choice of end-point... 7 7 Test specimens... 7 8 Exposure temperatures... 7 9 Ageing ovens... 7 10 Procedure... 7 11 Evaluation of results... 8 12 Determination of the relative temperature index... 11 13 Test report... 12 Annex A (normative) Calculation of the regression line... 13 Annex B (normative) Correlation coefficient 17 Annex C (informative) Recommended test schedule for primary properties... 18 Annex ZA (normative) Normative references to international publications with their relevant European publications... 19

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